BIO 431
HEALTH MICROBIOLOGY
D- MICROBIAL DISEASES
TRANSMITTED FROM HUMAN
TO HUMAN
MICROBIAL DISEASES TRANSMITTED FROM HUMAN TO HUMAN
• I- Airborne Diseases
• II- Diseases Transmitted by Direct Contact
• III- Sexually Transmitted Diseases
I) Airborne Diseases
• Streptococcal Diseases
• Diphtheria (diphteria)
• Whooping cough, pertussis
• Tuberculosis, Leprosy (Leprosy = Leprosy)
• Meningitis, Meningococemia
I) Airborne Diseases
• Measles
• Mumps (Mumps)
• Rubella (Rubella)
• Chickenpox (Chickenbox = varicella), Zoster (Shingles = Shingles)
• Colds, Influenza (Flu)
• SARS
I) Airborne Diseases
• Aerosol - SneezingAerosol - Sneezing
• Droplet diameter: 10μDroplet diameter: 10μmm
• 1-2 microorganisms / virion1-2 microorganisms / virion
• Droplet SpeedDroplet Speed
• Sneezing: 100 m / sSneezing: 100 m / s
• Cough / Shout: 16-48m / sCough / Shout: 16-48m / s
• 10,000–100,000 min / droplet in a 10,000–100,000 min / droplet in a trapping
trapping
• Source of Microorganisms in Source of Microorganisms in the Air
the Air
• SoilSoil
• PlantPlant
• AnimalAnimal
• HumanHuman
– Gram (+) and (-) – endospor
– Cell Wall Waxy Structure
•Mostly Gram (+) bacteria and viral origin